期刊
CHEMISTRY OF MATERIALS
卷 25, 期 6, 页码 856-861出版社
AMER CHEMICAL SOC
DOI: 10.1021/cm303357p
关键词
fuel cell; transition metals; mesoporous materials; EXAFS spectroscopy; electrocatalysis
资金
- Swedish Research Council (VR)
- AECP
- Swedish Foundation for Internationalization of Research (STINT)
- Research Fund of the UNIST
- WCU programme, Korea [R-31-2008-000-10055-0]
- Swedish Research Council
- Knut och Alice Wallenbergs Stiftelse
A new concept for noble metal-free polymer electrolyte membrane fuel cell catalysts has been developed. The catalysts consist of chelated transition metal ions incorporated in a nitrogen-functionalized ordered mesoporous carbon matrix, which is evidenced by a combination of X-ray absorption fine structure analysis and high-resolution transmission electron microscopy. The ordered mesoporous carbon matrix of the catalyst offers an exceptionally high specific surface area and allows conceptually for a high degree of tuning, enabling controlled variability of, e.g., pore size and curvature and thickness of the pore walls of the catalysts. Single cell fuel cell tests of membrane electrode assemblies prepared with a cathode made of iron- or cobalt-based versions of the catalyst show high power densities, reaching up to one-third of a commercial Pt/C catalyst at 0.6 V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据